5660-61-7Relevant articles and documents
Catalytic conversion of epoxides to 1,3-dioxolanes with phosphomolybdic acid (PMA) in solution and under solvent-free conditions
Zeynizadeh, Behzad,Sadighnia, Leila
experimental part, p. 2274 - 2279 (2009/07/18)
The fast and efficient conversion of epoxides into 2,2-dimethyl-1,3- dioxolanes was studied with catalytic amounts of phosphomolybdic acid (PMA) (0.1-0.2 mol %) at room temperature in solution and under solvent-free conditions. The products were obtained in high to excellent yields within 1-2 min. Copyright Taylor & Francis Group, LLC.
Aerobic Oxidation of Vicinal Diols Catalyzed by an Anderson-Type Polyoxometalate, [IMo6O24]5-
Khenkin, Alexander M.,Neumann, Ronny
, p. 1017 - 1021 (2007/10/03)
An Anderson-type polyoxometalate, [IVIIMo6O24]5-, has been used as a catalyst for the aerobic oxidation at 80°C of vicinal diols (glycols). This is the first report on the use of such a polyoxometalate as an oxi
Synthesis of 1,3-dioxolanes by the addition of ketones to epoxides by using [Cp*Ir(NCMe)3]2+ as catalyst
Adams, Richard D.,Barnard, Thomas S.,Brosius, Kellie
, p. 358 - 361 (2007/10/03)
A series of 1,3-dioxolanes have been prepared by the addition of ketones to epoxides in the presence of the catalyst [Cp*Ir(NCMe)3]2+, Cp=C5Me5. The reactions proceed readily at 22°C and the yields are good. The following 1,3-dioxolanes: 2,2,4-trimethyl-1,3-dioxolane, 1; 2,2-dimethyl-4-vinyl-1,3-dioxolane, 2; 2,2-dimethyl-4-phenyl-1,3-dioxolane, 3; 2,2-diethyl-4-methyl-1,3-dioxolane, 4; 2,2-diethyl-4-vinyl-1,3-dioxolane, 5; 2,2-diethyl-4-phenyl-1,3-dioxolane, 6 were prepared from the appropriate epoxide and carbonyl compounds. An inversion of configuration at the carbon atom at the C-O bond cleavage site of the epoxide was observed to occur in the formation of the dioxolanes: R, S,- 2,2,4,5-tetramethyl-1,3-dioxolane, 7 and a mixture of R,R- and S,S-2,2,4,5-tetramethyl-1,3-dioxolane, 8 obtained from the reactions of acetone with R, R,-/S, S,-buten-2-oxide and R, S,-buten-2-oxide, respectively.